Ask a man with real time in recovery what actually kept him sober through the hard stretches, and a surprising number won’t mention willpower at all. They’ll mention a guy who texted them every morning for six months straight. A group that showed up at a hospital at 2 a.m. because someone was scared. A friendship built entirely on two people admitting things out loud that neither had said to anyone before. Sobriety, it turns out, is rarely a solo project. For a lot of men, it’s held together by other men. That word, brotherhood, gets used loosely sometimes. It’s worth being specific about what it actually means in practice,…